Before You Begin
Question #46284
The Question
A typical member of the family Liliaceae is genetically modified to ectopically express genes that induce a functional, continuous cambial ring in its stem. Regarding the anatomical changes in this transgenic plant compared to its wild-type counterpart, which of the following statements is INCORRECT?
Options
- A.
The stem will produce secondary xylem towards the inner side and secondary phloem towards the outer side.
- B.
The formation of the continuous cambial ring occurs via the dedifferentiation of medullary rays to form interfascicular cambium.
- C.
The original scattered, closed vascular bundles will be displaced by the newly formed secondary vascular tissues.
- D.
The plant will divert metabolic resources from primary structural growth to the resource-intensive production of secondary tissues.
Check Your Answer
Correct Answer
Step-by-Step Solution
Explanation
How the Examiner Thinks
Evolutionary_Exception
Tackle problems where standard rules evolve or change based on specific environmental constraints.
Concepts Behind This Question
Liliaceae|Vascular Bundle Openness|Cambial Ring Formation
Why This Question Is Tricky
Common Mistakes
Conceptual Pivot: Students often memorize the mechanism of secondary growth in dicot stems (involving medullary rays) but fail to synthesize this with the fact that monocot stems lack these primary structures.
The trap relies on the assumption that inducing a cambial ring in a monocot retroactively creates dicot-like primary anatomy.
Quick Facts About This Question
Question Information
| Subject | Biology |
| Chapter | Morphology of Flowering Plants - Class 11 |
| Concept | Liliaceae Floral Formula |
| Difficulty | 8 |
| Cognitive Load | 5 |
| Target Solve Time | 120 sec |
| Access | Free |